[Grubby]

Large -

Take a step back and test a few things instead of just replacing parts.

1. At the VR you can jumper terminals A and F. This should cause the alternator to go to full output (about 16V).
2. If 1 doesn't work then check continuity for the F (Field) and the A (Bat). Unplug the VR plug and disconnect the Alternator wires to make this check. Check for continuity from the black F wire at the VR to the black FLD at the alternator. Then do the same with the red (Bat) wire.

The tests will verify good/bad for the VR and good/bad for the alternator. It also verifies good/bad wiring from the VR to the alternator.

Page 11 of the ERA wiring diagram will show you diagrams of what I am talking about.

Let us know the results.

John